Tire valve and gauge



June 26, 1928.

R. G. TAGLE ET Al.

TIRE VALVE AND- GAUGE original Filed April 29. 192g A' 2 Sheetsheet June 26, 1928.

R. G. T AGLE ET Al.

TIRE VALVE YAND GAUGE 2 Sheets-Sheet 2 Original Filed April 29. 1922 1N VENToRs Zosaqe Za Ze BYEaZlz/zn/ e rflfllllfdflfll Patented June 26, 1928.

UNITED STATES PATENT FFICE.

BOSCOE G. TAGLIE, OF NEW YORK, N. Y., .AND EDWIN H. CUBRIR, F EAST ORANGE, NEW JERSEY.

TIRE VALVE AND GAUGE.

Application iled April 29. 1922. Serial No. 557.490,

This invention is directed to an improved form of a pneuniatic tire valve an d gauge designed for permanent attachment. to the inner tuhe ot an autonooliil.n tire.

The irnrises eenerall a easing having :in

air pas sage leading trom the valve Chainl'ier into the interior of the tire und a separate eliarnloer containing a pressure indicator also eominunieating with the interior of the tire.

said separate chamlier heilig closed to the atmosphere and having a sealed opening through Whieh the indicator is visible from the outside. The advantages ot' :i tire valve and gauge of this general eonstruetion aie tully set forth in the above menti' ined ap plieation and need not lie repeated herein The primary olijleet` of the present invention is to provide a deviee ot the kind stated which will he simple in eonstrueti and inexpensive to manufaeture. a

on ea s v iid thoroiighly reliable and etlieient in operation. The various improvements Will liest he iinderstood from the detailed deseription to follow.

ln the drawings Fig. 1 is a longitudinal section taken eentrally through the easing in a plane angles to its front. and having the parts removed;

at rl ght interior Fig. 2 is a Jfront view of the casing. partly broken away and partly in seetion;

Figs. 3 and 4 are transverse sections taken on the lines 2%3 and 4-4 ot' Figs. respectively;

l and Q.

Fig. 5 is a longitudinal section taken through the device in assembled eondition; Fig. 6 is a perspective View ot' a detail;

Figs. 'i' to l2 illustrate a second or tive embodiment ot the invention.

alterna- Figs 7,

ianged Within the other. element l 'is exteriorly screw tlirea conforms generally to the shape standard valve easing now in use.

The outer Casing ded and ot the thus enabling the device to he used in eonneetion with the regular tire equipment.

Renewed December 20, 1927.

.i extenils clear through the saine and oomniuiiieates direetl;v with the interior ot' the tire. n the present enil'iodinient. however` said eliauiher is only uade long enough (approx mately) to aecommodate the valve niecliaiiifm t. heloiv Wliieh the easing elew ment l is iiolloived out so as to provide an enlarged eylindrieal eavity eXtendng through the hase thereof. The inner easing element i fits tightly and snugly in this oye iindrirml eavitv. lieing inade slightly shorter llifzu d rarity Af'or reasons subsequently to aiwear. ln praetiee. it is proposed to solder the tivo elements together liy a sweating proce so as not only to hold the inner elenieiit rigidly in place hut also to render the tit ahsolutell air-tiglit.

rllhe inner easing element 2 is also holA towed out. being formed with a eylindrioal rarity D extending elear through the saine exeept tor :i small thieltness of metal which "s lett at the top to elose the eavity at that point. Loeateffl. in the cavity 9 is a pressure indicator. which. in the present instance. eoiiiprises :i nioval'ile pointer l0 oilieratively roniiertefl lo an evtensihle pressure tulie Yll (prefer-aldi; of rulilier) and :i helieil spring lf2 surrounding' the tulie. lu providing for sueh eonueelion oi the parts. the. pointer 0r indieator 10 is provided with a stepped hase iiienilier ii havinfi a serenvtlireaded portion 14- orto vfliicl'i the upper eiid of the spring' l2 is threaded and eireumterentially rililied portion V15 to which the upper end of the pressure ulie ll is seeured in an airtight manner, At their lower ends, the spring l1? und pressure tulie ll are anchored to :i stepped plug 16 fitted in the lower end of the easing element l and l'iaving. like the nienilier i9, a sereivetlireaded portion 'i7 and a rililied portion ld for the attachment oi the spring' and tuhe. resi'ieetively. As will lie noted. the pliiQ lli is ot eonieal torni and tits intel :i eorrespoiir'ling soekft formed Within the easing? element` f2. the plug heing provided with a sot't metal gasl-et i9 (preterably solder) whieh insures the air-tight Sealing ot' the lower end ot the manine.' element. elanipingr nut 2t). screwed into the lower end ot the outer raging element l and arranged to bear against the bottom tare of the plug 1G. `ervee to t'oree the plug; home and loeh it tirmly in plare, [t shouhl la noted. however. thaty this Clamping.Y mu is not essential and might he omitted. ae it is quite feasible to drive the plug" into the ezeY in;V element with sutiieient foree to hold it in place. or the plug might eren he :soldered to the element. "l`o establish comnmnieation between the pief ure tulle l! and lhe interior ot the tire. the plug lti and ClampingV nut 20 are formed with central opening lV and Q2. reepeetively. through which the an may pass.

In order that the indicator' may be Visible from the outeide. the two easing' (demente l and i2 (both being' non-tran parent) are formed in their front Hide` wizh regiateriiuf openings Q3 and Q4, respeetil'eli.'` thefle open ingey bein;T made long; enough to show the indicator in its ditferent iroeitioeis. lioeated in the upper end ot' the inner asingil ele ment 2 is a transparent member or inte 23 held in place, by a washer 26 which has a eentral guiding opening for the movable indientor rod l0. ln practice. a thin eoatiir;y ot' eenient or other binding lenbstanee is applied to the tube 25 in order to insure :i perllee air-tight tit around the opening" 2S. lit in pointed out that. as the parte are thue oon strueted and arranged.r the pre ure indi eator is located in a ehamber entirely elosed to the atmosphere and which in fact ia absolutely air-tight. e a reeult. the intlieator is protected at all time` Yfrom outside disturbaneee and henee lees liable to failure. and moreover'. even in the event ot failure otl the indieator. as when the pressure tube beeonieeA ruptured` no air ean e, eape ktroni the tire` due to the elosed eliararter olI the elianiber in whieh the indir'ftor ie located. To facilitate the readings` of the indieator. the transparent tube 25 is provided with Suitable ealibratione. although the =e mi'fht if desired be formed in the n'iovable indi- Gator rod l0 or in the outside ot the eafing.

It remains to be deaeribed how air may be introdueed through the eoinposite eaaing into the tire. ln the present instaure as a simple and eonrenieut way to aeeonuilidi the desired re ult. the inner caeinp; element Q is ent away o' redueed alonei its opposite Sidee and throughout the length thereol'. as at '27. to provide air passages extending down between the two easing' elemente; eee .iartieularly Figs. 3 and l. These, air paix; Communicate with the vali'e chamber 3 through air porte or Channels 28 ent in the outer easingr element 1 just above the closed top of the inner easing element Q. `ee Fine. 2 and 5. At their lower ends, the air pas- .sages eonn'nnnicate with similar porte or ehauinh :ft toi-med in the bottoni tnt-e of the faepped plug 16. Consequently, the air :n -1 in; the relu rat ratte eliauiber Il paSSeS (l :windt in upmrtue :lifetioi through the -mnrleh Il :it tlf tlm, neat hwwnw'ardlr yeinfi eE l: through the iii'. tuen inwaw., through the 'git i hay and linally down- "irou 5"' ne we peiling into although mme ot the air will natuf opti/rally through the opening 2l. int(` the wwf-ufo tube l lf will be reinemeau-inf; element 2 is We'v' that the il tu eee' weil' vlad :il all points and moreover is titte-d airtight within the outer easing eleelfaml lei'.

. weary air space bethat the number ot' air other one nnbv or more) ie not 'lhe fleure ot' the invention reside#` in the tart that the .A Hirt-ut two lawine' elemente: are :4o related as to torni leweeii them a unable air paesage leading t'ro i the fzilie 'haiulier into the interior of llt lit.

ln 'the embodiment illuetrated in Figs. T to lr). the outer airliner element is iteel'lE niade up ot two dietinet parts. to wit, a body )ortion ltl in the l'fzrm o a hollow openended tube e'tesorly rerewtlireuded and. a head portion il! tilted s "tigfht in the upper end ot ,aaid body portion. :is by soldering. and aleo etimiorly uure\.'-thre:uled. The head pori'ien Sil areonrnuidaee the valve eliainber Il and 'valve nuahanism l. while the body portion Slt) is prorided with the tire attaching parte4 t T and rl. although the tlanfge 5 in thiV instauee i# serow-threaded to the bed\Y portion inetead ot being integral therewith. The outer easing' eleurent ae thuev Con- Stituted eontorins generally to the Standard type ot' raving and heure may aleo he need in eonneetion with the regular tire equipnient. The inner raving element7 in this en'lbodimenl'. is in the torln ol an open-ended tube 232, which rinsed at the top by a plug 33 tilted air-tigzjht therein, as by eolderinef. A reeees S is' formed in the upper face of the plun- Bil to Vtorni a seat for the lower end ot the valve eteni and to Save room. In other reepeets, the construction is substantialhY the ,Came as that previously described, the only other notable dilferenee being that eonimunieation between the Valve chamber loo lll)

3 and the air-passages T is provided for by leaving a space between the head portion 31 and the inner tube 32.

The advantages of the foregoing construe tions will be obvious to those skilled in the art and do not require any extended discussion. The parts are extremely simple, although strong and durable, and are such that they can be made and assembled at very low cost and with the greatest ease and facility` and this without involving any radical alteration in the standard the equipH ment. In the embodiment first described, the two casing elements are made from solid material, e. g. drop forgings, and hence require some machine work, but the amount of such Work is materially reduced by reason of the composite nature of the casing, which enables the air passages` though offset from the central valve chamber. to be produced by the simple operation of grinding oill narrow strips of metal along the sides of the inner casing element. In the second embodiment, the machine operations have been 'educed to minimum by the employment of' the open-ended tubes which go to malte up the composite casing. As is well known, these tubes are of standard manufacture and can be bought on the market at exceedingly low cost. Another important a lvantage present in either embodiment is the increased space allowed for the pressure indicator` whose parts may therefore he made larger and stronger than would otherwise be pos sible.

The invention has been illustrated herein merely by way of example and in preferred form, and obviously various changes and alterations therein will readily suggest themselves to those skilled in the art without departing from the spirit of the invention or sacrificing its chief advantages. lt should be understood therefore that the invention is not limited to any specitic forni or embodiment except in so far as such limitations are specified in the claims.

lVhile it is preferred to employ a pressure indicator such that shown and described. there are various other kinds of indicators which might be employed as well. Thus, the indicator pointer, instead of being actuated by pressure from within an extensible preesure tube as described, might be operated by a piston or plunger fitted in the closed chamber and acted on by air admitted directly into the chamber. As a matter of fact, the pointer might be made in the form of a liquid column made to rise and fall under the influence of the air pressure within the tire. The broad feature of the invention in this respect is that an indicator of some kind is located in the inner element of a composite casing.

Having thus described our invention, what we claim is as follows :W-

l. In a tire valve and gauge, the combination of a hollow outer casing element having an opening cut through the side. a hollow inner casing element fitted tightly within the outer casing element so as to form an air-tight seal around its side opening, said inner casing element also having an opening eut through its side and registering with that of the outer casing element. a `transparent member located within the inner casing element and forming an air-tight seal around the inner edge of the side opening thereof, an air passage formed between the inner and outer casing elements and leading into the interior of the tire, an inflating valve mechanism having its valve chamber communicating with the air passage, and a pressure in dicator located Within the inner casing element and visible from the outside through the transparent member.

Q, [n a tire valve and gauge, the combination of a hollow outer casing element provided at its upper end with an inflating valve mechanism and having an opening cut through the side` a hollow inner casing element fitted tightly within the outer casing element so as to form an air-tight seal around its side opening but cut away along one side so as to provide an air passage leading from the valve chamber to the interior of the tire, said inner casing element also having an opening eut through its side and registering with that of the outer ca sing element, a glass tube fitted air-tight within the inner casing element so as to form an air-tight seal around the inner edge ol' the side openingr thereof, and a pressure indicator located within the inner casing element and visible from the outside through the glass tube.

In testimony whereof, we have affixed our signatures hereto.

ROSCOE G. TAGLE. EDWIN H. CURRIE. 

